In order to perform a coordinated act, first, the organs involved in this act and their inter-relations should be known. This information comes from the eyes, the balance mechanism in the internal ear, muscles, joints and skin. Every second, billions of pieces of information are processed; evaluated and new decisions are taken accordingly. Man is not even aware of the processes accomplished in his body at dizzying speed. He just moves, laughs, cries, runs, eats and thinks. He spends no effort in performing these acts. Even for a faint smile, seventeen muscles have to work together at the same time. Non-function or malfunction of even one of these muscles changes the expression on the face. In order to be able to walk, fifty-four different muscles in the feet, legs, hips and back must work in co-operation.